Question: QQuestion 7 Say that we have a binary search tree with the keys 1 , 2 , 3 , 4 , 5 , 6 ,

QQuestion 7
Say that we have a binary search tree with the keys 1,2,3,4,5,6,7. A preorder traversal of the tree prints the keys in the sequence 4,1,3,2,6,5,7. What sequence would be printed by a postorder traversal of the tree?

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